IsValid.js

var PatternsDict = new Object();
   
PatternsDict.isZip = /^(\d{5}(-\d{4})?)?$/;
  // matches zip codes
   
PatternsDict.isCurrency = /^\d{1,3}(,\d{3})*\.\d{2}$/;
  // matches $17.23 or 14,281,545.45 or ...
   
PatternsDict.isTime = /^([1-2]?[0-9]?[:]?[0-6]?[0-9]?[:]?[0-6]?[0-9]?[ \tAaMmpP]?)*$/;
  // matches 5:04 or 12:34 

PatternsDict.isDate = new Array("^(([1-2]?[0-9]?)|([3][0-1]?)\/([1-9]?|[1][0-2]?)\/[0-2]?[0-9]?[0-9]?[0-9]?)*$","^(([0-9]?|([1][0-2]?))?\/(([0-2]?[0-9]?)|([3][0-1]))\/[0-2]?[0-9]?[0-9]?[0-9]?)*$");
  // matches 12/31/1998 or 31/12/1998 or empty is allowed
  
PatternsDict.isAlpha = /^([A-Za-z\' \t])*$/;
  // matches chuck Noris  or empty is allowed
  
PatternsDict.isWord = /^([A-Za-z0-9_ \t\-])*$/;
  // matches doto2_So
  
PatternsDict.isEmail = /^(((\w)+[-.!])?(\w[!]?)+@((\w)+[-.])+(\w{1,3}))?$/;  
  // matches k1234!@ting.tong.com or t@k.king.com or t-ding@dong.com
  
PatternsDict.isDigit = /^\d*$/;
  //equivalent to  [0-9]* matches 12312123 or empty is allowed

PatternsDict.isPhone = new Array("^(([A-Za-z0-9 ]+[-.]?)*)$","^[\(][0-9]+[\)](([A-Za-z0-9 ]+[-.]?)*)$");
  // matches 425.640.8151 or 425-640-8151 or (425)640-8151or empty is allowed
  
PatternsDict.isTinyInt = new Array("^\[0-9]?$","^[0-9]?[0-9]?$","^[0-2]?[0-5]?[0-5]?$");
  // value <= 255

PatternsDict.isSmallInt=new Array("^\[0-9]?$","^[0-9]?[0-9]?$","^[0-9]?[0-9]?[0-9]?$","^[0-9]?[0-9]?[0-9]?[0-9]?$","^[0-3]?[0-2]?[0-7]?[0-6]?[0-7]?$");
  // value <= 32767
  
  
function validateForm(theForm){  // return true if all is well
 var item = parent.document.all.tags('META'); //always returns true for
 for( var count = 0;count<item.length;count++){ // japanese language
   if(item[count].httpEquiv=='content-type'){
              var NodeValue = item[count].content;
              var pos = NodeValue.lastIndexOf('=');
              NodeValue = NodeValue.substr(pos+1);
              if(NodeValue=='shift-jis') return true;
   }
 }
 var elArr = theForm.elements;   // get all elements of the form into array
 for(var i = 0; i < elArr.length; i++)
  with(elArr[i]){                // for each element of the form...
    if(elArr[i].required=="true"){
        if(Trim(value)==''){
        //L_NAME(expando attrib) is localized version of name attribute
        alert(L_Empty + elArr[i].L_NAME); 
        elArr[i].focus();
        return false;
        }
    }
    var v = elArr[i].validator;   // get validator, if any
    if(!v) continue;              // no validator property, skip
    else {
         if(PatternsDict[v].length > 0){
            for(var j=0; j < PatternsDict[v].length; j++){
               var TempPatternsDict = new RegExp(PatternsDict[v][j]);
               var gotIt = TempPatternsDict.exec(Trim(value));
               if(gotIt) break;
               }
               if(!gotIt){
                  alert(L_Invalid + elArr[i].L_NAME);
                  elArr[i].focus();
                  return false;
               }
            }
         else{
            var thePat = PatternsDict[v];   // select the validating regular expr
            var gotIt = thePat.exec(Trim(value)); // run it on value of elArr[i]
            if(!gotIt){
               alert(L_Invalid + elArr[i].L_NAME);
               elArr[i].focus();
               return false;
            }
         }
    }
  }
  return true;
}

function Trim(oldString) {
   // is oldString made up completely of whitespace?
   var emptyPattern = /^(\s*)$/;
   if(emptyPattern.test(oldString))
      // if so, return null string
      return '';
   else
      // else, return non-whitespace characters from middle of oldString
      return oldString.replace(/^\s*(.*\S+)\s*$/,"$1");
}